[DrJava] [ drjava-Bugs-520519 ] instantiation problem

[<no...@so...>]

Bugs item #520519, was opened at 2002-02-20 08:13
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=438935&aid=520519&group_id=44253

Category: Interactions
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: instantiation problem

Initial Comment:
Hi,

I have a file VehiculeRoutier.java containing dummy
classes:

class VehiculeRoutier
{
}

class Voiture extends VehiculeRoutier
{
}

class Monospace extends Voiture
{
}

class Berline extends Voiture
{
}

class Coupe extends Voiture
{
}

class Velo extends VehiculeRoutier
{
}

class VTT extends Velo
{
}

class Tandem extends Velo
{
}

class Bus extends VehiculeRoutier
{
}



It compiles OK. But when I interact:

Welcome to DrJava.
> Voiture Laguna = new Berline();
> VehiculeRoutier mx5 = new Coupe();
java.lang.LinkageError: 
  at java.lang.ClassLoader.defineClass0(Native Method)
  at java.lang.ClassLoader.defineClass(Unknown Source)
  at java.lang.ClassLoader.defineClass(Unknown Source)
  at
edu.rice.cs.util.classloader.StickyClassLoader.loadClass(StickyClassLoader.java:197)
  at java.lang.ClassLoader.loadClass(Unknown Source) at
edu.rice.cs.drjava.model.repl.DynamicJavaAdapter$ClassLoaderExtension.loadClass(DynamicJavaAdapter.java:284)
  at java.lang.ClassLoader.loadClass(Unknown Source)
  at java.lang.ClassLoader.loadClassInternal(Unknown
Source)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Unknown Source)

If I do it the other way:
Welcome to DrJava.
> VehiculeRoutier mx5 = new Coupe();
> Voiture Laguna = new Berline();
java.lang.LinkageError: 
  at java.lang.ClassLoader.defineClass0(Native Method)
  at java.lang.ClassLoader.defineClass(Unknown Source)
  at java.lang.ClassLoader.defineClass(Unknown Source)
  at
edu.rice.cs.util.classloader.StickyClassLoader.loadClass(StickyClassLoader.java:197)
  at java.lang.ClassLoader.loadClass(Unknown Source) at
edu.rice.cs.drjava.model.repl.DynamicJavaAdapter$ClassLoaderExtension.loadClass(DynamicJavaAdapter.java:284)
  at java.lang.ClassLoader.loadClass(Unknown Source)
  at java.lang.ClassLoader.loadClassInternal(Unknown
Source)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Unknown Source)

So it looks like the second instantiation causes a
problem...

Have I made something wrong ?


----------------------------------------------------------------------

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